2011 iMac as a Second Screen for 2021 MacBook Pro?
I have a perfectly good 2011 iMac with macOS High Sierra that I would love to use as a second screen with 2021 MacBook Pro with macOS Monterey.
I have tried the instructions as recommended here: Use your iMac as a display with target display mode - Apple Support (CA) with both a Thunderbolt cable and a Mini DisplayPort cable; but my MacBook Pro is obviously more recent than the recommended 2019 MacBook or earlier with macOS Catalina or earlier.
So, are there any options to use my 2011 iMac with macOS High Sierra as a second screen for my 2021 MacBook Pro with macOS Monterey?